27th Aug 2014, 08:25
Hello. You might want to check all of your ground wires, to make certain that you have a good connection that is clean, and add some dielectric grease to each connection point. I know this is time consuming, but it may be worth it. This may solve a lot of your electrical problems.
Tony
26th Aug 2014, 19:55
Stop using the dealer. Find a proper independent mechanic. A dealer who thinks it's normal for a car to not start when it rains is totally incompetent.